Ray-based approach to integrated 3D visual communication

Takeshi Naemura; Hiroshi Harashima

doi:10.1117/12.419784

28 February 2001 Ray-based approach to integrated 3D visual communication

Takeshi Naemura, Hiroshi Harashima

Proceedings Volume 10298, Three-Dimensional Video and Display: Devices and Systems: A Critical Review; 102980D (2001) https://doi.org/10.1117/12.419784
Event: Information Technologies 2000, 2000, Boston, MA, United States

Abstract

For a high sense of reality in the next-generation communications, it is very important to realize three-dimensional (3D) spatial media, instead of existing 2D image media. In order to comprehensively deal with a variety of 3D visual data formats, the authors first introduce the concept of ”Integrated 3D Visual Communication,” which reflects the necessity of developing a neutral representation method independent of input/output systems. Then, the following discussions are concentrated on the ray-based approach to this concept, in which any visual sensation is considered to be derived from a set of light rays. This approach is a simple and straightforward to the problem of how to represent 3D space, which is an issue shared by various fields including 3D image communications, computer graphics, and virtual reality. This paper mainly presents the several developments in this approach, including some efficient methods of representing ray data, a real-time video-based rendering system, an interactive rendering system based on the integral photography, a concept of virtual object surface for the compression of tremendous amount of data, and a light ray capturing system using a telecentric lens. Experimental results demonstrate the effectiveness of the proposed techniques.

Citation Download Citation

Takeshi Naemura and Hiroshi Harashima "Ray-based approach to integrated 3D visual communication", Proc. SPIE 10298, Three-Dimensional Video and Display: Devices and Systems: A Critical Review, 102980D (28 February 2001); https://doi.org/10.1117/12.419784

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